The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2020
Filed:
Apr. 07, 2017
Tadano Ltd., Kagawa, JP;
TADANO LTD., Kagawa, JP;
Abstract
A crane, the hook (main hook) of which is stored on the lower end of a boom, and the winch (main winch) of which can be moved by a hydraulic motor, said crane being provided with a pressure sensorcapable of detecting the pressure of hydraulic fluid being delivered to the hydraulic motor, and a controllercapable of recognizing changes in the pressure of the hydraulic fluid on the basis of a signal from the pressure sensor, and also being provided with an anomaly warning means Mi capable of providing warning of anomalies pertaining to the storage of at least the hook (), the controlleractivating the anomaly warning means Mi when it is determined that the pressure of the hydraulic fluid when the hook has been stored is below a minimum value.